[INFO] crate json_diff 0.1.1 is already in cache
[INFO] checking json_diff-0.1.1 against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] extracting crate json_diff 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate json_diff 0.1.1 on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate json_diff 0.1.1
[INFO] finished tweaking crates.io crate json_diff 0.1.1
[INFO] tweaked toml for crates.io crate json_diff 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate json_diff 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] de3cb69b2fed433e88b57237b74f313038f74d5cb9e33f0b19139f04e108a442
[INFO] running `"docker" "start" "-a" "de3cb69b2fed433e88b57237b74f313038f74d5cb9e33f0b19139f04e108a442"`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking colored v1.9.0
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.5
[INFO] [stderr]     Checking structopt v0.3.5
[INFO] [stderr]     Checking json_diff v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.39s
[INFO] running `"docker" "inspect" "de3cb69b2fed433e88b57237b74f313038f74d5cb9e33f0b19139f04e108a442"`
[INFO] running `"docker" "rm" "-f" "de3cb69b2fed433e88b57237b74f313038f74d5cb9e33f0b19139f04e108a442"`
[INFO] [stdout] de3cb69b2fed433e88b57237b74f313038f74d5cb9e33f0b19139f04e108a442